21853140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{31}}^2\times {\mathrm{379}}^1$

素因数の和:453

約数の個数: 72

約数和(自身を含む): 63393120

約数和(自身を除く): 41539980

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 60, 62, 93, 124, 155, 186, 310, 372, 379, 465, 620, 758, 930, 961, 1137, 1516, 1860, 1895, 1922, 2274, 2883, 3790, 3844, 4548, 4805, 5685, 5766, 7580, 9610, 11370, 11532, 11749, 14415, 19220, 22740, 23498, 28830, 35247, 46996, 57660, 58745, 70494, 117490, 140988, 176235, 234980, 352470, 364219, 704940, 728438, 1092657, 1456876, 1821095, 2185314, 3642190, 4370628, 5463285, 7284380, 10926570, 21853140]

約数ペア:

[(1, 21853140), (2, 10926570), (3, 7284380), (4, 5463285), (5, 4370628), (6, 3642190), (10, 2185314), (12, 1821095), (15, 1456876), (20, 1092657), (30, 728438), (31, 704940), (60, 364219), (62, 352470), (93, 234980), (124, 176235), (155, 140988), (186, 117490), (310, 70494), (372, 58745), (379, 57660), (465, 46996), (620, 35247), (758, 28830), (930, 23498), (961, 22740), (1137, 19220), (1516, 14415), (1860, 11749), (1895, 11532), (1922, 11370), (2274, 9610), (2883, 7580), (3790, 5766), (3844, 5685), (4548, 4805)]