21235920

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{4657}}^1$

素因数の和:4692

約数の個数: 80

約数和(自身を含む): 69311040

約数和(自身を除く): 48075120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 38, 40, 48, 57, 60, 76, 80, 95, 114, 120, 152, 190, 228, 240, 285, 304, 380, 456, 570, 760, 912, 1140, 1520, 2280, 4560, 4657, 9314, 13971, 18628, 23285, 27942, 37256, 46570, 55884, 69855, 74512, 88483, 93140, 111768, 139710, 176966, 186280, 223536, 265449, 279420, 353932, 372560, 442415, 530898, 558840, 707864, 884830, 1061796, 1117680, 1327245, 1415728, 1769660, 2123592, 2654490, 3539320, 4247184, 5308980, 7078640, 10617960, 21235920]

約数ペア:

[(1, 21235920), (2, 10617960), (3, 7078640), (4, 5308980), (5, 4247184), (6, 3539320), (8, 2654490), (10, 2123592), (12, 1769660), (15, 1415728), (16, 1327245), (19, 1117680), (20, 1061796), (24, 884830), (30, 707864), (38, 558840), (40, 530898), (48, 442415), (57, 372560), (60, 353932), (76, 279420), (80, 265449), (95, 223536), (114, 186280), (120, 176966), (152, 139710), (190, 111768), (228, 93140), (240, 88483), (285, 74512), (304, 69855), (380, 55884), (456, 46570), (570, 37256), (760, 27942), (912, 23285), (1140, 18628), (1520, 13971), (2280, 9314), (4560, 4657)]