21350732

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1$

素因数の和:258

約数の個数: 48

約数和(自身を含む): 41997312

約数和(自身を除く): 20646580

約数列:

[1, 2, 4, 13, 26, 52, 53, 61, 106, 122, 127, 212, 244, 254, 508, 689, 793, 1378, 1586, 1651, 2756, 3172, 3233, 3302, 6466, 6604, 6731, 7747, 12932, 13462, 15494, 26924, 30988, 42029, 84058, 87503, 100711, 168116, 175006, 201422, 350012, 402844, 410591, 821182, 1642364, 5337683, 10675366, 21350732]

約数ペア:

[(1, 21350732), (2, 10675366), (4, 5337683), (13, 1642364), (26, 821182), (52, 410591), (53, 402844), (61, 350012), (106, 201422), (122, 175006), (127, 168116), (212, 100711), (244, 87503), (254, 84058), (508, 42029), (689, 30988), (793, 26924), (1378, 15494), (1586, 13462), (1651, 12932), (2756, 7747), (3172, 6731), (3233, 6604), (3302, 6466)]