21391590

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{71}}^1\times {\mathrm{83}}^1$

素因数の和:186

約数の個数: 96

約数和(自身を含む): 57915648

約数和(自身を除く): 36524058

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 55, 66, 71, 83, 110, 121, 142, 165, 166, 213, 242, 249, 330, 355, 363, 415, 426, 498, 605, 710, 726, 781, 830, 913, 1065, 1210, 1245, 1562, 1815, 1826, 2130, 2343, 2490, 2739, 3630, 3905, 4565, 4686, 5478, 5893, 7810, 8591, 9130, 10043, 11715, 11786, 13695, 17182, 17679, 20086, 23430, 25773, 27390, 29465, 30129, 35358, 42955, 50215, 51546, 58930, 60258, 64823, 85910, 88395, 100430, 128865, 129646, 150645, 176790, 194469, 257730, 301290, 324115, 388938, 648230, 713053, 972345, 1426106, 1944690, 2139159, 3565265, 4278318, 7130530, 10695795, 21391590]

約数ペア:

[(1, 21391590), (2, 10695795), (3, 7130530), (5, 4278318), (6, 3565265), (10, 2139159), (11, 1944690), (15, 1426106), (22, 972345), (30, 713053), (33, 648230), (55, 388938), (66, 324115), (71, 301290), (83, 257730), (110, 194469), (121, 176790), (142, 150645), (165, 129646), (166, 128865), (213, 100430), (242, 88395), (249, 85910), (330, 64823), (355, 60258), (363, 58930), (415, 51546), (426, 50215), (498, 42955), (605, 35358), (710, 30129), (726, 29465), (781, 27390), (830, 25773), (913, 23430), (1065, 20086), (1210, 17679), (1245, 17182), (1562, 13695), (1815, 11786), (1826, 11715), (2130, 10043), (2343, 9130), (2490, 8591), (2739, 7810), (3630, 5893), (3905, 5478), (4565, 4686)]