21153420

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{911}}^1$

素因数の和:972

約数の個数: 96

約数和(自身を含む): 67415040

約数和(自身を除く): 46261620

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 43, 45, 54, 60, 86, 90, 108, 129, 135, 172, 180, 215, 258, 270, 387, 430, 516, 540, 645, 774, 860, 911, 1161, 1290, 1548, 1822, 1935, 2322, 2580, 2733, 3644, 3870, 4555, 4644, 5466, 5805, 7740, 8199, 9110, 10932, 11610, 13665, 16398, 18220, 23220, 24597, 27330, 32796, 39173, 40995, 49194, 54660, 78346, 81990, 98388, 117519, 122985, 156692, 163980, 195865, 235038, 245970, 352557, 391730, 470076, 491940, 587595, 705114, 783460, 1057671, 1175190, 1410228, 1762785, 2115342, 2350380, 3525570, 4230684, 5288355, 7051140, 10576710, 21153420]

約数ペア:

[(1, 21153420), (2, 10576710), (3, 7051140), (4, 5288355), (5, 4230684), (6, 3525570), (9, 2350380), (10, 2115342), (12, 1762785), (15, 1410228), (18, 1175190), (20, 1057671), (27, 783460), (30, 705114), (36, 587595), (43, 491940), (45, 470076), (54, 391730), (60, 352557), (86, 245970), (90, 235038), (108, 195865), (129, 163980), (135, 156692), (172, 122985), (180, 117519), (215, 98388), (258, 81990), (270, 78346), (387, 54660), (430, 49194), (516, 40995), (540, 39173), (645, 32796), (774, 27330), (860, 24597), (911, 23220), (1161, 18220), (1290, 16398), (1548, 13665), (1822, 11610), (1935, 10932), (2322, 9110), (2580, 8199), (2733, 7740), (3644, 5805), (3870, 5466), (4555, 4644)]