21000879810

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{239}}^1\times {\mathrm{20773}}^1$

素因数の和:21072

約数の個数: 96

約数和(自身を含む): 56000056320

約数和(自身を除く): 34999176510

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 47, 90, 94, 141, 235, 239, 282, 423, 470, 478, 705, 717, 846, 1195, 1410, 1434, 2115, 2151, 2390, 3585, 4230, 4302, 7170, 10755, 11233, 20773, 21510, 22466, 33699, 41546, 56165, 62319, 67398, 101097, 103865, 112330, 124638, 168495, 186957, 202194, 207730, 311595, 336990, 373914, 505485, 623190, 934785, 976331, 1010970, 1869570, 1952662, 2928993, 4881655, 4964747, 5857986, 8786979, 9763310, 9929494, 14644965, 14894241, 17573958, 24823735, 29289930, 29788482, 43934895, 44682723, 49647470, 74471205, 87869790, 89365446, 148942410, 223413615, 233343109, 446827230, 466686218, 700029327, 1166715545, 1400058654, 2100087981, 2333431090, 3500146635, 4200175962, 7000293270, 10500439905, 21000879810]

約数ペア:

[(1, 21000879810), (2, 10500439905), (3, 7000293270), (5, 4200175962), (6, 3500146635), (9, 2333431090), (10, 2100087981), (15, 1400058654), (18, 1166715545), (30, 700029327), (45, 466686218), (47, 446827230), (90, 233343109), (94, 223413615), (141, 148942410), (235, 89365446), (239, 87869790), (282, 74471205), (423, 49647470), (470, 44682723), (478, 43934895), (705, 29788482), (717, 29289930), (846, 24823735), (1195, 17573958), (1410, 14894241), (1434, 14644965), (2115, 9929494), (2151, 9763310), (2390, 8786979), (3585, 5857986), (4230, 4964747), (4302, 4881655), (7170, 2928993), (10755, 1952662), (11233, 1869570), (20773, 1010970), (21510, 976331), (22466, 934785), (33699, 623190), (41546, 505485), (56165, 373914), (62319, 336990), (67398, 311595), (101097, 207730), (103865, 202194), (112330, 186957), (124638, 168495)]