21299370

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1\times {\mathrm{113}}^1$

素因数の和:287

約数の個数: 64

約数和(自身を含む): 52925184

約数和(自身を除く): 31625814

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 61, 103, 113, 122, 183, 206, 226, 305, 309, 339, 366, 515, 565, 610, 618, 678, 915, 1030, 1130, 1545, 1695, 1830, 3090, 3390, 6283, 6893, 11639, 12566, 13786, 18849, 20679, 23278, 31415, 34465, 34917, 37698, 41358, 58195, 62830, 68930, 69834, 94245, 103395, 116390, 174585, 188490, 206790, 349170, 709979, 1419958, 2129937, 3549895, 4259874, 7099790, 10649685, 21299370]

約数ペア:

[(1, 21299370), (2, 10649685), (3, 7099790), (5, 4259874), (6, 3549895), (10, 2129937), (15, 1419958), (30, 709979), (61, 349170), (103, 206790), (113, 188490), (122, 174585), (183, 116390), (206, 103395), (226, 94245), (305, 69834), (309, 68930), (339, 62830), (366, 58195), (515, 41358), (565, 37698), (610, 34917), (618, 34465), (678, 31415), (915, 23278), (1030, 20679), (1130, 18849), (1545, 13786), (1695, 12566), (1830, 11639), (3090, 6893), (3390, 6283)]