21203624

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{179}}^1$

素因数の和:282

約数の個数: 64

約数和(自身を含む): 46267200

約数和(自身を除く): 25063576

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 52, 67, 68, 104, 134, 136, 179, 221, 268, 358, 442, 536, 716, 871, 884, 1139, 1432, 1742, 1768, 2278, 2327, 3043, 3484, 4556, 4654, 6086, 6968, 9112, 9308, 11993, 12172, 14807, 18616, 23986, 24344, 29614, 39559, 47972, 59228, 79118, 95944, 118456, 155909, 158236, 203881, 311818, 316472, 407762, 623636, 815524, 1247272, 1631048, 2650453, 5300906, 10601812, 21203624]

約数ペア:

[(1, 21203624), (2, 10601812), (4, 5300906), (8, 2650453), (13, 1631048), (17, 1247272), (26, 815524), (34, 623636), (52, 407762), (67, 316472), (68, 311818), (104, 203881), (134, 158236), (136, 155909), (179, 118456), (221, 95944), (268, 79118), (358, 59228), (442, 47972), (536, 39559), (716, 29614), (871, 24344), (884, 23986), (1139, 18616), (1432, 14807), (1742, 12172), (1768, 11993), (2278, 9308), (2327, 9112), (3043, 6968), (3484, 6086), (4556, 4654)]