21349900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1493}}^1$

素因数の和:1531

約数の個数: 72

約数和(自身を含む): 54465264

約数和(自身を除く): 33115364

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 25, 26, 44, 50, 52, 55, 65, 100, 110, 130, 143, 220, 260, 275, 286, 325, 550, 572, 650, 715, 1100, 1300, 1430, 1493, 2860, 2986, 3575, 5972, 7150, 7465, 14300, 14930, 16423, 19409, 29860, 32846, 37325, 38818, 65692, 74650, 77636, 82115, 97045, 149300, 164230, 194090, 213499, 328460, 388180, 410575, 426998, 485225, 821150, 853996, 970450, 1067495, 1642300, 1940900, 2134990, 4269980, 5337475, 10674950, 21349900]

約数ペア:

[(1, 21349900), (2, 10674950), (4, 5337475), (5, 4269980), (10, 2134990), (11, 1940900), (13, 1642300), (20, 1067495), (22, 970450), (25, 853996), (26, 821150), (44, 485225), (50, 426998), (52, 410575), (55, 388180), (65, 328460), (100, 213499), (110, 194090), (130, 164230), (143, 149300), (220, 97045), (260, 82115), (275, 77636), (286, 74650), (325, 65692), (550, 38818), (572, 37325), (650, 32846), (715, 29860), (1100, 19409), (1300, 16423), (1430, 14930), (1493, 14300), (2860, 7465), (2986, 7150), (3575, 5972)]