21194820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{1613}}^1$

素因数の和:1701

約数の個数: 72

約数和(自身を含む): 65212056

約数和(自身を除く): 44017236

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 73, 90, 146, 180, 219, 292, 365, 438, 657, 730, 876, 1095, 1314, 1460, 1613, 2190, 2628, 3226, 3285, 4380, 4839, 6452, 6570, 8065, 9678, 13140, 14517, 16130, 19356, 24195, 29034, 32260, 48390, 58068, 72585, 96780, 117749, 145170, 235498, 290340, 353247, 470996, 588745, 706494, 1059741, 1177490, 1412988, 1766235, 2119482, 2354980, 3532470, 4238964, 5298705, 7064940, 10597410, 21194820]

約数ペア:

[(1, 21194820), (2, 10597410), (3, 7064940), (4, 5298705), (5, 4238964), (6, 3532470), (9, 2354980), (10, 2119482), (12, 1766235), (15, 1412988), (18, 1177490), (20, 1059741), (30, 706494), (36, 588745), (45, 470996), (60, 353247), (73, 290340), (90, 235498), (146, 145170), (180, 117749), (219, 96780), (292, 72585), (365, 58068), (438, 48390), (657, 32260), (730, 29034), (876, 24195), (1095, 19356), (1314, 16130), (1460, 14517), (1613, 13140), (2190, 9678), (2628, 8065), (3226, 6570), (3285, 6452), (4380, 4839)]