21486738

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1$

素因数の和:136

約数の個数: 128

約数和(自身を含む): 58060800

約数和(自身を除く): 36574062

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 23, 26, 29, 39, 42, 46, 58, 59, 69, 78, 87, 91, 118, 138, 161, 174, 177, 182, 203, 273, 299, 322, 354, 377, 406, 413, 483, 546, 598, 609, 667, 754, 767, 826, 897, 966, 1131, 1218, 1239, 1334, 1357, 1534, 1711, 1794, 2001, 2093, 2262, 2301, 2478, 2639, 2714, 3422, 4002, 4071, 4186, 4602, 4669, 5133, 5278, 5369, 6279, 7917, 8142, 8671, 9338, 9499, 10266, 10738, 11977, 12558, 14007, 15834, 16107, 17342, 17641, 18998, 22243, 23954, 26013, 28014, 28497, 32214, 35282, 35931, 39353, 44486, 52026, 52923, 56994, 60697, 66729, 71862, 78706, 105846, 118059, 121394, 123487, 133458, 155701, 182091, 236118, 246974, 275471, 311402, 364182, 370461, 467103, 511589, 550942, 740922, 826413, 934206, 1023178, 1534767, 1652826, 3069534, 3581123, 7162246, 10743369, 21486738]

約数ペア:

[(1, 21486738), (2, 10743369), (3, 7162246), (6, 3581123), (7, 3069534), (13, 1652826), (14, 1534767), (21, 1023178), (23, 934206), (26, 826413), (29, 740922), (39, 550942), (42, 511589), (46, 467103), (58, 370461), (59, 364182), (69, 311402), (78, 275471), (87, 246974), (91, 236118), (118, 182091), (138, 155701), (161, 133458), (174, 123487), (177, 121394), (182, 118059), (203, 105846), (273, 78706), (299, 71862), (322, 66729), (354, 60697), (377, 56994), (406, 52923), (413, 52026), (483, 44486), (546, 39353), (598, 35931), (609, 35282), (667, 32214), (754, 28497), (767, 28014), (826, 26013), (897, 23954), (966, 22243), (1131, 18998), (1218, 17641), (1239, 17342), (1334, 16107), (1357, 15834), (1534, 14007), (1711, 12558), (1794, 11977), (2001, 10738), (2093, 10266), (2262, 9499), (2301, 9338), (2478, 8671), (2639, 8142), (2714, 7917), (3422, 6279), (4002, 5369), (4071, 5278), (4186, 5133), (4602, 4669)]