21043455720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^2\times {\mathrm{3578819}}^1$

素因数の和:3578847

約数の個数: 96

約数和(自身を含む): 73437386400

約数和(自身を除く): 52393930680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 49, 56, 60, 70, 84, 98, 105, 120, 140, 147, 168, 196, 210, 245, 280, 294, 392, 420, 490, 588, 735, 840, 980, 1176, 1470, 1960, 2940, 5880, 3578819, 7157638, 10736457, 14315276, 17894095, 21472914, 25051733, 28630552, 35788190, 42945828, 50103466, 53682285, 71576380, 75155199, 85891656, 100206932, 107364570, 125258665, 143152760, 150310398, 175362131, 200413864, 214729140, 250517330, 300620796, 350724262, 375775995, 429458280, 501034660, 526086393, 601241592, 701448524, 751551990, 876810655, 1002069320, 1052172786, 1402897048, 1503103980, 1753621310, 2104345572, 2630431965, 3006207960, 3507242620, 4208691144, 5260863930, 7014485240, 10521727860, 21043455720]

約数ペア:

[(1, 21043455720), (2, 10521727860), (3, 7014485240), (4, 5260863930), (5, 4208691144), (6, 3507242620), (7, 3006207960), (8, 2630431965), (10, 2104345572), (12, 1753621310), (14, 1503103980), (15, 1402897048), (20, 1052172786), (21, 1002069320), (24, 876810655), (28, 751551990), (30, 701448524), (35, 601241592), (40, 526086393), (42, 501034660), (49, 429458280), (56, 375775995), (60, 350724262), (70, 300620796), (84, 250517330), (98, 214729140), (105, 200413864), (120, 175362131), (140, 150310398), (147, 143152760), (168, 125258665), (196, 107364570), (210, 100206932), (245, 85891656), (280, 75155199), (294, 71576380), (392, 53682285), (420, 50103466), (490, 42945828), (588, 35788190), (735, 28630552), (840, 25051733), (980, 21472914), (1176, 17894095), (1470, 14315276), (1960, 10736457), (2940, 7157638), (5880, 3578819)]