21346470

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{173}}^1\times {\mathrm{457}}^1$

素因数の和:646

約数の個数: 64

約数和(自身を含む): 57378240

約数和(自身を除く): 36031770

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 135, 173, 270, 346, 457, 519, 865, 914, 1038, 1371, 1557, 1730, 2285, 2595, 2742, 3114, 4113, 4570, 4671, 5190, 6855, 7785, 8226, 9342, 12339, 13710, 15570, 20565, 23355, 24678, 41130, 46710, 61695, 79061, 123390, 158122, 237183, 395305, 474366, 711549, 790610, 1185915, 1423098, 2134647, 2371830, 3557745, 4269294, 7115490, 10673235, 21346470]

約数ペア:

[(1, 21346470), (2, 10673235), (3, 7115490), (5, 4269294), (6, 3557745), (9, 2371830), (10, 2134647), (15, 1423098), (18, 1185915), (27, 790610), (30, 711549), (45, 474366), (54, 395305), (90, 237183), (135, 158122), (173, 123390), (270, 79061), (346, 61695), (457, 46710), (519, 41130), (865, 24678), (914, 23355), (1038, 20565), (1371, 15570), (1557, 13710), (1730, 12339), (2285, 9342), (2595, 8226), (2742, 7785), (3114, 6855), (4113, 5190), (4570, 4671)]