21156960

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{4007}}^1$

素因数の和:4036

約数の個数: 96

約数和(自身を含む): 72721152

約数和(自身を除く): 51564192

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 32, 33, 40, 44, 48, 55, 60, 66, 80, 88, 96, 110, 120, 132, 160, 165, 176, 220, 240, 264, 330, 352, 440, 480, 528, 660, 880, 1056, 1320, 1760, 2640, 4007, 5280, 8014, 12021, 16028, 20035, 24042, 32056, 40070, 44077, 48084, 60105, 64112, 80140, 88154, 96168, 120210, 128224, 132231, 160280, 176308, 192336, 220385, 240420, 264462, 320560, 352616, 384672, 440770, 480840, 528924, 641120, 661155, 705232, 881540, 961680, 1057848, 1322310, 1410464, 1763080, 1923360, 2115696, 2644620, 3526160, 4231392, 5289240, 7052320, 10578480, 21156960]

約数ペア:

[(1, 21156960), (2, 10578480), (3, 7052320), (4, 5289240), (5, 4231392), (6, 3526160), (8, 2644620), (10, 2115696), (11, 1923360), (12, 1763080), (15, 1410464), (16, 1322310), (20, 1057848), (22, 961680), (24, 881540), (30, 705232), (32, 661155), (33, 641120), (40, 528924), (44, 480840), (48, 440770), (55, 384672), (60, 352616), (66, 320560), (80, 264462), (88, 240420), (96, 220385), (110, 192336), (120, 176308), (132, 160280), (160, 132231), (165, 128224), (176, 120210), (220, 96168), (240, 88154), (264, 80140), (330, 64112), (352, 60105), (440, 48084), (480, 44077), (528, 40070), (660, 32056), (880, 24042), (1056, 20035), (1320, 16028), (1760, 12021), (2640, 8014), (4007, 5280)]