21704550

素因数分解:

$2^1\times 3^1\times 5^2\times 7^2\times {\mathrm{2953}}^1$

素因数の和:2982

約数の個数: 72

約数和(自身を含む): 62636616

約数和(自身を除く): 40932066

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 25, 30, 35, 42, 49, 50, 70, 75, 98, 105, 147, 150, 175, 210, 245, 294, 350, 490, 525, 735, 1050, 1225, 1470, 2450, 2953, 3675, 5906, 7350, 8859, 14765, 17718, 20671, 29530, 41342, 44295, 62013, 73825, 88590, 103355, 124026, 144697, 147650, 206710, 221475, 289394, 310065, 434091, 442950, 516775, 620130, 723485, 868182, 1033550, 1446970, 1550325, 2170455, 3100650, 3617425, 4340910, 7234850, 10852275, 21704550]

約数ペア:

[(1, 21704550), (2, 10852275), (3, 7234850), (5, 4340910), (6, 3617425), (7, 3100650), (10, 2170455), (14, 1550325), (15, 1446970), (21, 1033550), (25, 868182), (30, 723485), (35, 620130), (42, 516775), (49, 442950), (50, 434091), (70, 310065), (75, 289394), (98, 221475), (105, 206710), (147, 147650), (150, 144697), (175, 124026), (210, 103355), (245, 88590), (294, 73825), (350, 62013), (490, 44295), (525, 41342), (735, 29530), (1050, 20671), (1225, 17718), (1470, 14765), (2450, 8859), (2953, 7350), (3675, 5906)]