21096970340

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{197}}^1\times {\mathrm{12253}}^1$

素因数の和:12501

約数の個数: 96

約数和(自身を含む): 48914046720

約数和(自身を除く): 27817076380

約数列:

[1, 2, 4, 5, 10, 19, 20, 23, 38, 46, 76, 92, 95, 115, 190, 197, 230, 380, 394, 437, 460, 788, 874, 985, 1748, 1970, 2185, 3743, 3940, 4370, 4531, 7486, 8740, 9062, 12253, 14972, 18124, 18715, 22655, 24506, 37430, 45310, 49012, 61265, 74860, 86089, 90620, 122530, 172178, 232807, 245060, 281819, 344356, 430445, 465614, 563638, 860890, 931228, 1127276, 1164035, 1409095, 1721780, 2328070, 2413841, 2818190, 4656140, 4827682, 5354561, 5636380, 9655364, 10709122, 12069205, 21418244, 24138410, 26772805, 45862979, 48276820, 53545610, 55518343, 91725958, 107091220, 111036686, 183451916, 222073372, 229314895, 277591715, 458629790, 555183430, 917259580, 1054848517, 1110366860, 2109697034, 4219394068, 5274242585, 10548485170, 21096970340]

約数ペア:

[(1, 21096970340), (2, 10548485170), (4, 5274242585), (5, 4219394068), (10, 2109697034), (19, 1110366860), (20, 1054848517), (23, 917259580), (38, 555183430), (46, 458629790), (76, 277591715), (92, 229314895), (95, 222073372), (115, 183451916), (190, 111036686), (197, 107091220), (230, 91725958), (380, 55518343), (394, 53545610), (437, 48276820), (460, 45862979), (788, 26772805), (874, 24138410), (985, 21418244), (1748, 12069205), (1970, 10709122), (2185, 9655364), (3743, 5636380), (3940, 5354561), (4370, 4827682), (4531, 4656140), (7486, 2818190), (8740, 2413841), (9062, 2328070), (12253, 1721780), (14972, 1409095), (18124, 1164035), (18715, 1127276), (22655, 931228), (24506, 860890), (37430, 563638), (45310, 465614), (49012, 430445), (61265, 344356), (74860, 281819), (86089, 245060), (90620, 232807), (122530, 172178)]