21259476

素因数分解:

$2^2\times 3^3\times 7^1\times {\mathrm{61}}^1\times {\mathrm{461}}^1$

素因数の和:542

約数の個数: 96

約数和(自身を含む): 64162560

約数和(自身を除く): 42903084

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 61, 63, 84, 108, 122, 126, 183, 189, 244, 252, 366, 378, 427, 461, 549, 732, 756, 854, 922, 1098, 1281, 1383, 1647, 1708, 1844, 2196, 2562, 2766, 3227, 3294, 3843, 4149, 5124, 5532, 6454, 6588, 7686, 8298, 9681, 11529, 12447, 12908, 15372, 16596, 19362, 23058, 24894, 28121, 29043, 38724, 46116, 49788, 56242, 58086, 84363, 87129, 112484, 116172, 168726, 174258, 196847, 253089, 337452, 348516, 393694, 506178, 590541, 759267, 787388, 1012356, 1181082, 1518534, 1771623, 2362164, 3037068, 3543246, 5314869, 7086492, 10629738, 21259476]

約数ペア:

[(1, 21259476), (2, 10629738), (3, 7086492), (4, 5314869), (6, 3543246), (7, 3037068), (9, 2362164), (12, 1771623), (14, 1518534), (18, 1181082), (21, 1012356), (27, 787388), (28, 759267), (36, 590541), (42, 506178), (54, 393694), (61, 348516), (63, 337452), (84, 253089), (108, 196847), (122, 174258), (126, 168726), (183, 116172), (189, 112484), (244, 87129), (252, 84363), (366, 58086), (378, 56242), (427, 49788), (461, 46116), (549, 38724), (732, 29043), (756, 28121), (854, 24894), (922, 23058), (1098, 19362), (1281, 16596), (1383, 15372), (1647, 12908), (1708, 12447), (1844, 11529), (2196, 9681), (2562, 8298), (2766, 7686), (3227, 6588), (3294, 6454), (3843, 5532), (4149, 5124)]