21981120

素因数分解:

$2^6\times 3^1\times 5^1\times 7^1\times {\mathrm{3271}}^1$

素因数の和:3298

約数の個数: 112

約数和(自身を含む): 79784448

約数和(自身を除く): 57803328

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 80, 84, 96, 105, 112, 120, 140, 160, 168, 192, 210, 224, 240, 280, 320, 336, 420, 448, 480, 560, 672, 840, 960, 1120, 1344, 1680, 2240, 3271, 3360, 6542, 6720, 9813, 13084, 16355, 19626, 22897, 26168, 32710, 39252, 45794, 49065, 52336, 65420, 68691, 78504, 91588, 98130, 104672, 114485, 130840, 137382, 157008, 183176, 196260, 209344, 228970, 261680, 274764, 314016, 343455, 366352, 392520, 457940, 523360, 549528, 628032, 686910, 732704, 785040, 915880, 1046720, 1099056, 1373820, 1465408, 1570080, 1831760, 2198112, 2747640, 3140160, 3663520, 4396224, 5495280, 7327040, 10990560, 21981120]

約数ペア:

[(1, 21981120), (2, 10990560), (3, 7327040), (4, 5495280), (5, 4396224), (6, 3663520), (7, 3140160), (8, 2747640), (10, 2198112), (12, 1831760), (14, 1570080), (15, 1465408), (16, 1373820), (20, 1099056), (21, 1046720), (24, 915880), (28, 785040), (30, 732704), (32, 686910), (35, 628032), (40, 549528), (42, 523360), (48, 457940), (56, 392520), (60, 366352), (64, 343455), (70, 314016), (80, 274764), (84, 261680), (96, 228970), (105, 209344), (112, 196260), (120, 183176), (140, 157008), (160, 137382), (168, 130840), (192, 114485), (210, 104672), (224, 98130), (240, 91588), (280, 78504), (320, 68691), (336, 65420), (420, 52336), (448, 49065), (480, 45794), (560, 39252), (672, 32710), (840, 26168), (960, 22897), (1120, 19626), (1344, 16355), (1680, 13084), (2240, 9813), (3271, 6720), (3360, 6542)]