21534708

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1$

素因数の和:185

約数の個数: 96

約数和(自身を含む): 57551872

約数和(自身を除く): 36017164

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 31, 39, 52, 61, 62, 73, 78, 93, 122, 124, 146, 156, 183, 186, 219, 244, 292, 366, 372, 403, 438, 732, 793, 806, 876, 949, 1209, 1586, 1612, 1891, 1898, 2263, 2379, 2418, 2847, 3172, 3782, 3796, 4453, 4526, 4758, 4836, 5673, 5694, 6789, 7564, 8906, 9052, 9516, 11346, 11388, 13359, 13578, 17812, 22692, 24583, 26718, 27156, 29419, 49166, 53436, 57889, 58838, 73749, 88257, 98332, 115778, 117676, 138043, 147498, 173667, 176514, 231556, 276086, 294996, 347334, 353028, 414129, 552172, 694668, 828258, 1656516, 1794559, 3589118, 5383677, 7178236, 10767354, 21534708]

約数ペア:

[(1, 21534708), (2, 10767354), (3, 7178236), (4, 5383677), (6, 3589118), (12, 1794559), (13, 1656516), (26, 828258), (31, 694668), (39, 552172), (52, 414129), (61, 353028), (62, 347334), (73, 294996), (78, 276086), (93, 231556), (122, 176514), (124, 173667), (146, 147498), (156, 138043), (183, 117676), (186, 115778), (219, 98332), (244, 88257), (292, 73749), (366, 58838), (372, 57889), (403, 53436), (438, 49166), (732, 29419), (793, 27156), (806, 26718), (876, 24583), (949, 22692), (1209, 17812), (1586, 13578), (1612, 13359), (1891, 11388), (1898, 11346), (2263, 9516), (2379, 9052), (2418, 8906), (2847, 7564), (3172, 6789), (3782, 5694), (3796, 5673), (4453, 4836), (4526, 4758)]