21602970

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1$

素因数の和:165

約数の個数: 128

約数和(自身を含む): 62208000

約数和(自身を除く): 40605030

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 29, 30, 31, 45, 54, 58, 62, 87, 89, 90, 93, 135, 145, 155, 174, 178, 186, 261, 267, 270, 279, 290, 310, 435, 445, 465, 522, 534, 558, 783, 801, 837, 870, 890, 899, 930, 1305, 1335, 1395, 1566, 1602, 1674, 1798, 2403, 2581, 2610, 2670, 2697, 2759, 2790, 3915, 4005, 4185, 4495, 4806, 5162, 5394, 5518, 7743, 7830, 8010, 8091, 8277, 8370, 8990, 12015, 12905, 13485, 13795, 15486, 16182, 16554, 23229, 24030, 24273, 24831, 25810, 26970, 27590, 38715, 40455, 41385, 46458, 48546, 49662, 69687, 74493, 77430, 80011, 80910, 82770, 116145, 121365, 124155, 139374, 148986, 160022, 232290, 240033, 242730, 248310, 348435, 372465, 400055, 480066, 696870, 720099, 744930, 800110, 1200165, 1440198, 2160297, 2400330, 3600495, 4320594, 7200990, 10801485, 21602970]

約数ペア:

[(1, 21602970), (2, 10801485), (3, 7200990), (5, 4320594), (6, 3600495), (9, 2400330), (10, 2160297), (15, 1440198), (18, 1200165), (27, 800110), (29, 744930), (30, 720099), (31, 696870), (45, 480066), (54, 400055), (58, 372465), (62, 348435), (87, 248310), (89, 242730), (90, 240033), (93, 232290), (135, 160022), (145, 148986), (155, 139374), (174, 124155), (178, 121365), (186, 116145), (261, 82770), (267, 80910), (270, 80011), (279, 77430), (290, 74493), (310, 69687), (435, 49662), (445, 48546), (465, 46458), (522, 41385), (534, 40455), (558, 38715), (783, 27590), (801, 26970), (837, 25810), (870, 24831), (890, 24273), (899, 24030), (930, 23229), (1305, 16554), (1335, 16182), (1395, 15486), (1566, 13795), (1602, 13485), (1674, 12905), (1798, 12015), (2403, 8990), (2581, 8370), (2610, 8277), (2670, 8091), (2697, 8010), (2759, 7830), (2790, 7743), (3915, 5518), (4005, 5394), (4185, 5162), (4495, 4806)]