21159320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{5813}}^1$

素因数の和:5844

約数の個数: 64

約数和(自身を含む): 58605120

約数和(自身を除く): 37445800

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 182, 260, 280, 364, 455, 520, 728, 910, 1820, 3640, 5813, 11626, 23252, 29065, 40691, 46504, 58130, 75569, 81382, 116260, 151138, 162764, 203455, 232520, 302276, 325528, 377845, 406910, 528983, 604552, 755690, 813820, 1057966, 1511380, 1627640, 2115932, 2644915, 3022760, 4231864, 5289830, 10579660, 21159320]

約数ペア:

[(1, 21159320), (2, 10579660), (4, 5289830), (5, 4231864), (7, 3022760), (8, 2644915), (10, 2115932), (13, 1627640), (14, 1511380), (20, 1057966), (26, 813820), (28, 755690), (35, 604552), (40, 528983), (52, 406910), (56, 377845), (65, 325528), (70, 302276), (91, 232520), (104, 203455), (130, 162764), (140, 151138), (182, 116260), (260, 81382), (280, 75569), (364, 58130), (455, 46504), (520, 40691), (728, 29065), (910, 23252), (1820, 11626), (3640, 5813)]