31971996

素因数分解:

$2^2\times 3^5\times 7^1\times {\mathrm{37}}^1\times {\mathrm{127}}^1$

素因数の和:190

約数の個数: 144

約数和(自身を含む): 99147776

約数和(自身を除く): 67175780

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 37, 42, 54, 63, 74, 81, 84, 108, 111, 126, 127, 148, 162, 189, 222, 243, 252, 254, 259, 324, 333, 378, 381, 444, 486, 508, 518, 567, 666, 756, 762, 777, 889, 972, 999, 1036, 1134, 1143, 1332, 1524, 1554, 1701, 1778, 1998, 2268, 2286, 2331, 2667, 2997, 3108, 3402, 3429, 3556, 3996, 4572, 4662, 4699, 5334, 5994, 6804, 6858, 6993, 8001, 8991, 9324, 9398, 10287, 10668, 11988, 13716, 13986, 14097, 16002, 17982, 18796, 20574, 20979, 24003, 27972, 28194, 30861, 32004, 32893, 35964, 41148, 41958, 42291, 48006, 56388, 61722, 62937, 65786, 72009, 83916, 84582, 96012, 98679, 123444, 125874, 126873, 131572, 144018, 169164, 197358, 216027, 251748, 253746, 288036, 296037, 380619, 394716, 432054, 507492, 592074, 761238, 864108, 888111, 1141857, 1184148, 1522476, 1776222, 2283714, 2664333, 3552444, 4567428, 5328666, 7992999, 10657332, 15985998, 31971996]

約数ペア:

[(1, 31971996), (2, 15985998), (3, 10657332), (4, 7992999), (6, 5328666), (7, 4567428), (9, 3552444), (12, 2664333), (14, 2283714), (18, 1776222), (21, 1522476), (27, 1184148), (28, 1141857), (36, 888111), (37, 864108), (42, 761238), (54, 592074), (63, 507492), (74, 432054), (81, 394716), (84, 380619), (108, 296037), (111, 288036), (126, 253746), (127, 251748), (148, 216027), (162, 197358), (189, 169164), (222, 144018), (243, 131572), (252, 126873), (254, 125874), (259, 123444), (324, 98679), (333, 96012), (378, 84582), (381, 83916), (444, 72009), (486, 65786), (508, 62937), (518, 61722), (567, 56388), (666, 48006), (756, 42291), (762, 41958), (777, 41148), (889, 35964), (972, 32893), (999, 32004), (1036, 30861), (1134, 28194), (1143, 27972), (1332, 24003), (1524, 20979), (1554, 20574), (1701, 18796), (1778, 17982), (1998, 16002), (2268, 14097), (2286, 13986), (2331, 13716), (2667, 11988), (2997, 10668), (3108, 10287), (3402, 9398), (3429, 9324), (3556, 8991), (3996, 8001), (4572, 6993), (4662, 6858), (4699, 6804), (5334, 5994)]