19865772

素因数分解:

$2^2\times 3^2\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{199}}^1$

素因数の和:315

約数の個数: 72

約数和(自身を含む): 52416000

約数和(自身を除く): 32550228

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 47, 59, 94, 118, 141, 177, 188, 199, 236, 282, 354, 398, 423, 531, 564, 597, 708, 796, 846, 1062, 1194, 1692, 1791, 2124, 2388, 2773, 3582, 5546, 7164, 8319, 9353, 11092, 11741, 16638, 18706, 23482, 24957, 28059, 33276, 35223, 37412, 46964, 49914, 56118, 70446, 84177, 99828, 105669, 112236, 140892, 168354, 211338, 336708, 422676, 551827, 1103654, 1655481, 2207308, 3310962, 4966443, 6621924, 9932886, 19865772]

約数ペア:

[(1, 19865772), (2, 9932886), (3, 6621924), (4, 4966443), (6, 3310962), (9, 2207308), (12, 1655481), (18, 1103654), (36, 551827), (47, 422676), (59, 336708), (94, 211338), (118, 168354), (141, 140892), (177, 112236), (188, 105669), (199, 99828), (236, 84177), (282, 70446), (354, 56118), (398, 49914), (423, 46964), (531, 37412), (564, 35223), (597, 33276), (708, 28059), (796, 24957), (846, 23482), (1062, 18706), (1194, 16638), (1692, 11741), (1791, 11092), (2124, 9353), (2388, 8319), (2773, 7164), (3582, 5546)]