17993988

素因数分解:

$2^2\times 3^4\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1$

素因数の和:151

約数の個数: 120

約数和(自身を含む): 51497600

約数和(自身を除く): 33503612

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 27, 36, 37, 38, 54, 57, 74, 76, 79, 81, 108, 111, 114, 148, 158, 162, 171, 222, 228, 237, 316, 324, 333, 342, 444, 474, 513, 666, 684, 703, 711, 948, 999, 1026, 1332, 1406, 1422, 1501, 1539, 1998, 2052, 2109, 2133, 2812, 2844, 2923, 2997, 3002, 3078, 3996, 4218, 4266, 4503, 5846, 5994, 6004, 6156, 6327, 6399, 8436, 8532, 8769, 9006, 11692, 11988, 12654, 12798, 13509, 17538, 18012, 18981, 25308, 25596, 26307, 27018, 35076, 37962, 40527, 52614, 54036, 55537, 56943, 75924, 78921, 81054, 105228, 111074, 113886, 121581, 157842, 162108, 166611, 222148, 227772, 236763, 243162, 315684, 333222, 473526, 486324, 499833, 666444, 947052, 999666, 1499499, 1999332, 2998998, 4498497, 5997996, 8996994, 17993988]

約数ペア:

[(1, 17993988), (2, 8996994), (3, 5997996), (4, 4498497), (6, 2998998), (9, 1999332), (12, 1499499), (18, 999666), (19, 947052), (27, 666444), (36, 499833), (37, 486324), (38, 473526), (54, 333222), (57, 315684), (74, 243162), (76, 236763), (79, 227772), (81, 222148), (108, 166611), (111, 162108), (114, 157842), (148, 121581), (158, 113886), (162, 111074), (171, 105228), (222, 81054), (228, 78921), (237, 75924), (316, 56943), (324, 55537), (333, 54036), (342, 52614), (444, 40527), (474, 37962), (513, 35076), (666, 27018), (684, 26307), (703, 25596), (711, 25308), (948, 18981), (999, 18012), (1026, 17538), (1332, 13509), (1406, 12798), (1422, 12654), (1501, 11988), (1539, 11692), (1998, 9006), (2052, 8769), (2109, 8532), (2133, 8436), (2812, 6399), (2844, 6327), (2923, 6156), (2997, 6004), (3002, 5994), (3078, 5846), (3996, 4503), (4218, 4266)]